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gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5213
Experience:  51 years of experience install design and repair of all makes and models of AC
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I have a Goodman GPG13 Series 3.5 Ton Package unit

Customer Question

I have a Goodman GPG13 Series 3.5 Ton Package unit installed on the roof of our store. I'm trying to determine whether I need to add refrigerant (R22) based on my the superheat numbers I'm getting. For some reason my superheat number both yesterday and today 50 degrees plus seem very high. I'm suspecting my digital temperature probe but I am insulating it when taking my line temps.
Outside Temp. 93 Dry Bulb
Inside Temp. 78 dry Bulb @ 60 % Humidity
Low-Side psig = 55 (R22 Temp = 31 degrees)
suction Line Temp. = 86 degrees
High-side psig = 200 (R22 Temp = 102 degrees)
Liquid Line Temp. = 103 degrees
Thank you in advance for your time,
Submitted: 2 years ago.
Category: HVAC
Expert:  gotoman for ac replied 2 years ago.
Russ here. Welcome. I am here to help. Please do not rate until you are satisfied with answer. Always available for follow up questions. add refrigerant till you het about 70 lb suction pressure. Russ
Customer: replied 2 years ago.
Thank you Russ.
Customer: replied 2 years ago.
No more questions.Thank you
Expert:  gotoman for ac replied 2 years ago.
You are welcome. Russ